1)
What is the meaning of "b'Hilo Nero Alei Roshi"?
1.
Rashi: When there was light and Simchah on my head.
2.
Malbim: This is a metaphor for his success of the Nefesh. It was like a Divine light that illuminated on his head to influence Chochmah and Da'as on him.
2)
What is the meaning of "l'Oro Elech Choshech"?
1.
Rashi: I would go in any darkness and affliction that came to the world, and He was light for me. Ibn Ezra - it is as if it says b'Choshech.
2.
Malbim: Via the Divine light, I was able to go even in darkness, for it was not physical light, rather, illumination of the Nefesh - "Ner Elokim... ha'Chofesh Chadrei Baten."
